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mvebu driver for 4.6 (part 1)

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implement ARM delay timer for orion
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Merge tag 'mvebu-drivers-4.6-1' of git://git.infradead.org/linux-mvebu into next/soc

mvebu driver for 4.6 (part 1)

implement ARM delay timer for orion

* tag 'mvebu-drivers-4.6-1' of git://git.infradead.org/linux-mvebu:
  ARM: orion: implement ARM delay timer

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2016-02-08 13:54:16 -08:00
commit 7436cf625e
1 changed files with 13 additions and 0 deletions
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13
arch/arm/plat-orion/time.c
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@ -18,6 +18,7 @@
#include <linux/irq.h>
#include <linux/sched_clock.h>
#include <plat/time.h>
#include <asm/delay.h>
/*
* MBus bridge block registers.
@ -188,6 +189,15 @@ orion_time_set_base(void __iomem *_timer_base)
timer_base = _timer_base;
}
static unsigned long orion_delay_timer_read(void)
{
return ~readl(timer_base + TIMER0_VAL_OFF);
}
static struct delay_timer orion_delay_timer = {
.read_current_timer = orion_delay_timer_read,
};
void __init
orion_time_init(void __iomem *_bridge_base, u32 _bridge_timer1_clr_mask,
unsigned int irq, unsigned int tclk)
@ -202,6 +212,9 @@ orion_time_init(void __iomem *_bridge_base, u32 _bridge_timer1_clr_mask,
ticks_per_jiffy = (tclk + HZ/2) / HZ;
orion_delay_timer.freq = tclk;
register_current_timer_delay(&orion_delay_timer);
/*
* Set scale and timer for sched_clock.
*/